Developmental Anomalies of The Pituitary

The correct answer is C.

The neurohypophysis (posterior pituitary) is derived from an evagination of diencephalic neurectoderm. This structure is responsible for releasing oxytocin and vasopressin to the general circulation.

Both hormones are synthesized in cell bodies contained within the hypothalamus.
ACTH (choice A), prolactin (choice D), and TSH (choice E) are all synthesized and released by the anterior pituitary, or adenohypophysis, which is derived from an evagination of the ectoderm of Rathke's pouch, a diverticulum of the primitive mouth. Remnants of this pouch may give rise to a craniopharyngioma in later life.

Epinephrine (choice B) is synthesized and released into the circulation by the adrenal medulla, a neural crest derivative.

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